1 A wheel and an axle together make a simple machine. 2  Wheels and axles are used to carry loads around easily, for long distances with very less effort. 3  A pulley consists of a wheel with a groove around it. 4  A rope can be passed through the groove.
In sociology and related social sciences, the idea of collective consciousness comes from the French theorist and sociologist Emile Durkheim. Collective consciousness is all about understanding what makes society work.
Collective unconscious (German: kollektives Unbewusstes), a term coined by Carl Jung, refers to structures of the unconscious mind which are shared among beings of the same species.